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External Mail to Exchange 2010

We have an Exchange 2003 environment and had created an exchange 2010 server (hub, mailbox and CAS all in one) Everything works fine receiving and sending mail regardless of which mailbox the user is located on however due to performance issues we need to replace the existing exchange 2010 server with a new one. I created the new server and all the connections to 2003 just as I had done previously and moved a handful of users off the first 2010 server onto the new one. Everything works fine as long as the first exchange 2010 server is on however as soon as I shut down the first EX2010 server, the users who's mailbox is on the second EX2010 server stop receiving external email. They can still send externally and both receive and send internal. Any pointers would be appreciated.

Thanks

Adam Brown

Each server has its own receive connectors. When you removed the old server, it probably didn't remove the receive connector that was tied to it. Create a new receive connector under Server Configuration > Hub Transport > Receive Connectors and tie it to the new server. That should let you send externally.

Also, make sure the old server was properly removed. If you didn't uninstall Exchange on the old server, but just shut it down, you'll need to do some cleanup in ADSIEdit.

Winsoup

Do you have a spam filter in between?
Is it possible that the spam filter is set to the IP address of the old server?
That would seem to make sense in this case since you're just not able to receive externally.

Andy Andy

Hello,

Plezase check the Recieve connector properties properly. By right click on it. Please compare the Permission Groups tab with the recieve connector created in OLD exchange Server.

In this the issue is of not accepting mail from internet because recieve connector not configured properly and also make sure in send connector properties the new Exchange server added in source Server

Thanks,
Andy

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Answered my own question